Andrew g



(No Model.)

A. G. GRAY. GAR DOOR.

No. 466,164. Patented Dec. 29, 1891.

w/r/vss I A 7TOHNEYS UNITED STATES PATENT OFFICE.

ANDRE? G. GRAY, OF ST. JOHN, CANADA.

-'CAR-DOOR.

SPECIFICATION forming part of Letters Patent No. 466,164, dated December29, 1891. Application filed March 14, 1891. Serial No. 334,993- (Nomodel.)

To all whom it may concern.-

- .The object of the invention is to provide a new and improved car-doormore especially designed for use on railroad freight-cars, and which issimple and durable in construction and can be readily moved forward andbackward to open and close the car.

The invention consists of certain parts and details and combinations ofthe same, as will be hereinafter fully described, and then pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of part of the car with the improvementattached. Fig. 2

is a transverse section of the same onthe line a; a: of Fig. 1, the doorbeing closed. Fig. 3 is a like view of the same with the door open, andFig. 4 is a side elevation of one of the crank-arms with the linkattached. I

The car A is provided in its sides with the usual openings B, adapted tobe closed by a door 0, fitting in the said opening, as is plainly shownin Fig. 2. The door 0 is provided on its outside and near its upper endwith two hangers D, in which are journaled grooved pulleys E, mounted totravel on a longitudinally-extending shaft F, secured at its ends to.crank-arms G, held on short shafts G, mounted to turn in suitablebearings H, attached to the outside of the car, as is plainlyillustrated in Fig. 1. When the door 0 is closed, the crank-arms Gextend downwardly, as is plainly illustrated in Figs. 1 and 2.

On the crank-arms G are secured wrist-pins I, pivotally connected bylinks J with crankpins 1' on crank-arms K, secured on the shaft L,extending longitudinally on the lower part of the car and mounted toturn in suitable bearings N, attached to the said oar. One of thecrank-arms K is provided with a pivoted handle K, adapted to be takenhold of by the operator, so as to move the said crank-arm K, the shaftL, and the other crank-arm upwardly, so as to open the car-door, ashereinafter more fully described.

From the car-door 0 projects to one side a pin 0, on which is hung anarm P, extending downward and having its lower end curved, as at P, thecurved part extending to the rear of the shaft L near one of thebearings N. On the arm P is secured a pin Q, adapted to pass over thefront of the car-door 0 when the latter is in an uppermost position, asillustrated in Fig. 3, so as to prevent the lower end of the door fromswinging outward when disconnected from the opening B.

The operation is as follows: The car-door O fits into the opening B ofthe car A, as is plainly illustrated in Figs. 1 and 2, the crankarms Gand K then standing in a lowermost position. Now,'when it is desired toopen the car-door, the operator takes hold of the handle K on one of thecrank-arms K and swings the same upward,so that the two linksJ impart anupward-swinging motion to the crank-arms G, whereby the shaft F swingsaway from the side of the car outwardly and upwardly, thus carryingalong the pulleys E, hangers D, and the car-door C, so that the latteris disengaged from the opening B. The car-door then assumes the positionas illustrated in Fig. 3, and can now be readily run to one side by theoperator taking hold of the curved end P of the arm P and pulling on thesame to the left, so that the door 0 is moved to one side by the pulleysE traveling on the shaft F. The crank-arms K are so arranged that whenthey are swung into an uppermost position, as illustrated in Fig. 3,they remain in this position without help from the operator.

When it is desired to close the door,-the opcar-door 0 back to itsformer position in front of the opening B, and then the operator takeshold of the handle K and swings the crankarms K downward, whereby thecrank-arms G movein alike direction,thus swingingtheshaft F, supportingthe door 0, downward, and the door inward and into the opening B. Itwill be seen that when the shaft F is in an outer most position, asillustrated in Fig. 3, the cardoor 0 is a considerable distance off theside of the car, so that it can be readily moved to one side of theopening B. The arm or handle P for winding the door may be placed oneither side.

A car-door constructed in this manner is very simple and durable and canbe readily opened and closed and run easily forward and backward, asabove described.

Having thus fully described my invent-ion, I claim as new and desire tosecure by Letters Patent 1. In a car-door, the combination, withcrank-arms and a shaft supported by the said crank-arms and adapted tocarry the door proper, of links pivotally connected with the saidcrank-arms, a secondset of crank-arms pivotally connected with the saidlinks, and a second shaft carrying the said second set of crank-arms andmounted to turn, substantially as shown and described.

2. In a car-door, the combination, with crank-arms and a shaft supportedby the'said crank-arms and adapted to carry the door proper, of linkspivotally connected with the said crank-arms, a second set of crank-armspivotally connected with the said links, a second shaft carrying thesaid second set of crankarms and mounted to turn, and a handle formed onone of the crank-arms of the second setof crank-arms, substantially asshown and described.

3. In a car-door, the combination, with the door proper provided withgrooved pulleys, of a shaft on which the said pulleys are mounted totravel, crank-arms carrying the said shaft and mounted to swing on theout-j side of the car, links pivotally connected with the saidcrank-arms, a second set of crankarms pivotally connected with the saidlinks,

and a second shaft carrying the said second set of crank-arms andmounted to turn on the outside of the car, substantially as shown anddescribed.

4. In a car-door, the combination, with the door proper provided withgrooved pulleys, of a shaft on which the said pulleys are mounted totravel, crank-arms carrying the said shaft and mounted to swing on theoutside of the car, links pivotally connected with the said crank-arms,a second set of crankarms pivotally connected with the said links, asecond shaft carrying the said second set ofcrank-arms and mounted toturn on the outside of the car, and an arm or handle hung on the saiddoor and extending to the rear of the said second shaft, substantiallyas shown and described.

5. In a car-door, the combination, with the door proper provided'withgrooved pulleys, of a shaft on which the said pulleys are mounted totravel, crank-arms carrying the said shaft and mounted to swing on theoutside of the car, links pivotally connected with the said crank-arms,a second set of crankarms pivotally connected with the said links, asecond shaft carrying the said second set of crank-arms'and mounted toturn on the outside of the car, an arm or handle hung on the said doorand extending to the rear of the said second shaft,'and a stop-pin heldon the said arm adapted to engage the said door, substantially as shownand described.

6. In a car-door, the combination, with the door proper provided withgrooved pulleys, of a shaft on which the said pulleys are mounted totravel, crank-arms carrying the said shaft and mounted to swing on theoutside of the car, links pivotally connected with thesaid crank-arms, asecond set of crank-arms pivotally connected with the said links, asecond shaft carrying the said second set of crank-arms and mounted toturn on the outsideof the car, and means, substantially as described,for turning the said second shaft, substantially as set forth.

ANDREW e. GRAY.

\Vitnesses:

ARCHIBALD McLAoHLAN, T. V.TRooP.

